b) You can also use the included extension 'Render > Guides Creator' to delete all existing guides (if there are too many to delete them individually with the delete key while hovering over them (Inkscape 0.47pre):

Pablo Trabajos
2) Panel moving guide with 'unit rate (%)
% of what? page size?
YES
~suv
thanks, you're right to remove the guides even though the system at hand and less and less intuitive than that proposed by me, but the important thing is that it works! he could then also do without it for what I'm concerned...
OT:
I saved so far to go before pure SVG so that the guides would take off but the levels ... to know things is not so important that there is a book in Italian that kind of Gimp http://manual.gimp.org/it/